PTFE Fuel Line Kits

EVIL ENERGY PTFE Fuel Line Kits are crafted from high-quality PTFE material to deliver exceptional durability, heat resistance, and compatibility with various fuels, including gasoline, ethanol, and diesel. These kits are available in multiple sizes, such as 6AN PTFE fuel line, 8AN PTFE fuel line, and more, with hose lengths ranging from 10FT to 26FT, offering flexibility for diverse installation requirements. Ideal for racing cars, modified vehicles, and heavy-duty trucks, they ensure optimal performance and reliability, making them the top choice for automotive enthusiasts and professionals.

Upgrade your vehicle’s fuel system with a premium PTFE fuel line kit designed for maximum durability and flow. Whether you are building a custom race car or performing routine maintenance, finding a reliable AN fuel line is critical. Our 6AN PTFE fuel line kit and 8AN PTFE fuel line options are engineered to handle the most aggressive fuels, including E85, ethanol, and methanol, without degradation or vapor permeation.

As a leader in the automotive aftermarket, the EVIL ENERGY fuel line kit is built to outperform standard rubber lines. Each PTFE hose kit in our collection features a multi-layer reinforced structure, making it the go-to AN fuel line kit for enthusiasts who demand safety and performance.

Why Choose a PTFE Fuel Line Kit?

Switching to a PTFE fuel line offers several technical benefits over traditional NBR hoses:

  • Superior Chemical Resistance: A PTFE fuel line kit is immune to the corrosive effects of modern fuels, preventing the hose from hardening or leaking over time.
  • Zero Fuel Odor: The high-density lining of our AN fuel lines blocks fuel vapors, ensuring your garage stays free of gasoline smells.
  • High Pressure & Temp Rating: Our 6AN fuel line and 8AN fuel line products are rated for extreme environments, maintaining integrity under high-pressure fuel injection.
  • Enhanced Durability: Every EVIL ENERGY fuel line features stainless steel or nylon braiding to protect against abrasion and heat.

Technical Specifications & Compatibility

Use the table below to select the correct AN fuel line kit for your specific plumbing requirements.

Size/Specification Inner Diameter Primary Application Recommended Hardware
6AN Fuel Line 5/16-inch (8.13mm) Street Performance & EFI Systems 6AN fittings kit
8AN Fuel Line 1/2-inch (11.12mm) High-Horsepower & Drag Racing 8AN fuel line fittings
Diesel Fuel Line Varies Heavy-Duty Truck Fuel Delivery diesel fuel line kit

Engineered for Every Builder 

Our AN line kit solutions cater to a diverse range of automotive projects:

  • LS & K-Swap Builders: Simplify your engine swap with a comprehensive 6AN fuel line kit that includes all necessary braided fuel line connectors.
  • E85 Conversions: Ensure your system is ethanol-ready with a corrosion-resistant 6AN PTFE fuel line kit.
  • Diesel Enthusiasts: Upgrade your lift pump or return lines with a dedicated diesel fuel line kit.
  • Restomod Pro: Use our AN fuel line and 6AN fuel lines to bring modern reliability to classic muscle cars.

Installation & Accessories

Completing your project requires more than just the hose. We provide a full range of 6AN fuel lines and 6AN fittings kit options to ensure a leak-free seal. For larger builds, our 8AN fuel line fittings provide the high-flow capacity needed for high-boost applications. The EVIL ENERGY fuel line ecosystem is designed for 'plug-and-play' compatibility, making us the preferred choice for braided fuel line connectors and professional AN line kit setups.

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PTFE Fuel Line: The Ultimate Performance Guide

Choosing the right AN fuel line kit is the most critical decision for your vehicle's safety and longevity. From E85 compatibility to preventing fuel odors, our EVIL ENERGY fuel line technology sets the standard for high-performance builds. Explore the tabs below to compare CPE vs. PTFE, understand fuel chemical resistance, and master the technical advantages of our 6AN PTFE fuel line kit and 8AN PTFE fuel line solutions.

Not all AN fuel lines are created equal. In this comparison, we break down the critical differences between synthetic CPE rubber and high-performance PTFE fuel line kit options. Learn why PTFE hose kit technology is the industry standard for eliminating fuel odors (permeation) and providing a 100% leak-proof seal for modern EFI systems. Whether you are using a 6AN fuel line or an 8AN fuel line, understanding the material gap is the first step to a reliable build.

When it comes to chemical stability, the EVIL ENERGY fuel line stands in a league of its own. This section explains why a 6AN PTFE fuel line kit is the only safe choice for corrosive fuels like E85, Ethanol, and Methanol. We also detail its performance in a diesel fuel line kit, ensuring your 6AN fuel lines remain flexible and intact without the internal degradation common in standard rubber hoses. Discover why our AN fuel line kit is trusted by race teams and daily drivers alike.

What exactly is PTFE, and is it 'bad' for certain applications? While PTFE (Polytetrafluoroethylene) offers unmatched heat and chemical resistance, it requires specific installation techniques. We discuss the importance of using dedicated braided fuel line connectors and a 6AN fittings kit hardware to prevent kinking. Get the facts on why an AN line kit featuring PTFE is a superior long-term investment, despite being less flexible than traditional rubber AN lines.

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Featured Products

EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black - EVILENERGY[Straight,1PC]
EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black

Engineered for high-pressure, high-temperature fuel systems, the EVIL ENERGY PTFE Hose End Fitting delivers leak-proof performance for PTFE fuel lines in performance builds, LS swaps, boosted engines, and ethanol-based fuel setups. Made from 6061-T6 aluminum with a 360° swivel design, these AN fittings ensure a clean, secure, and easy-to-assemble connection—ideal for builders who demand durability and precision.

$8.99
$8.99
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[Black,Without Bracket] black inline evil energy fuel filter with directional arrow and multiple AN fuel line fittingsevil energy fuel filter kit with stainless steel inline fuel filter, AN fittings, and mounting hardware
EVIL ENERGY Inline Fuel Filter with 6AN 8AN 10AN Adapter and Bracket Universal 10/30/40/100 Micron - Black

[Application] Universal fuel filter, includes an6, an8, an10 adapters for different size applications. With mounting bracket keeps the engine bar stylish and clean.

  • [Material] Aluminum alloy fuel filter can and stainless steel filter element.
  • [O-ring] The o-ring provides a tight seal for fittings and end caps.
  • [Function] Can be used for filtering gasoline, diesel, etc. Captures contaminant particles of 10 micron and above to protect the fuel system of the vehicle.
  • [Feature] Removable design, easy to clean or replace filter element at regular time.
  • [Installation Tips] We have debugged the installation direction of the fuel filters before delivery. Please check and ensure the closed end of the filter element docks with the spring. Let the liquid flow following the arrow from the spring end to the other end, and the fuel filter will serve longer.
$23.99
$23.99
$24.99
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[20FT] EVIL ENERGY PTFE Fuel Line Kit, complete black hose & fittings set, 180-day return[16FT] EVIL ENERGY PTFE Fuel Line Kit, black braided hose, fittings, free shipping & return
EVIL ENERGY 4/6/8/10AN PTFE Fuel Line Kit | E85 Nylon Braided Hose | 16/20FT Black Black with Comprehensive Fittings

Three-Layer Construction: Our fuel lines are constructed with a triple-layer material for unparalleled performance and protection. The innermost layer is made of PTFE for maximum chemical resistance, a braided stainless steel layer for strength and durability, and an outer nylon layer for added abrasion resistance and protection.

Multiple Sizes: We offer our fuel lines in 4AN, 6AN, 8AN, and 10AN sizes, catering to the diverse needs of various fuel delivery systems.

Fitting Types: Our kit includes a variety of fittings at 0°, 90°, 45°, and 180° angles, ensuring versatility and flexibility during installation, allowing for custom routing in tight or complex spaces.

Precision Fit and Leak-Free Performance: The combination of the PTFE inner layer and the high-quality aluminum hose ends ensures a precision fit and leak-free connection, even under extreme pressure, providing a safe and reliable fuel system.

$62.09
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[1 PC][2 PCS]
EVIL ENERGY AN Flare to AN ORB Male Fuel Rail Adapter Fitting
  • AN to ORB Conversion
    Converts AN flare fittings to ORB ports for fuel rails and aftermarket fuel components.
  • High Pressure Capability
    Rated up to 1500 PSI for reliable performance in fuel and oil systems.
  • Leak Free Sealing Design
    37 degree AN flare seal combined with ORB O ring ensures a secure, leak resistant connection.
  • CNC Machined Aluminum
    Made from 6061 T6 aluminum with black anodized finish for corrosion resistance.
  • Wide Size Availability
    Multiple AN sizes available to support custom fuel system layouts.
$8.99
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  • EVIL ENERGY High-Performance AN6 Fuel Line Kit with Black Anodized PTFE & CPE Hoses and 45° & 90° FittingsEVIL ENERGY High-Performance AN6 Fuel Line Kit with Black Anodized PTFE & CPE Hoses and 45° & 90° Fittings
    EVIL ENERGY Complete High-Performance Fuel Line Kit with AN6 PTFE & CPE Hoses, 45° & 90° Fittings

    Fuel Line Types:

    PTFE Fuel Hose ：6AN 5FT

    CPE Fuel Hose ：6AN 5FT

    Fittings:

    45° PTFE Fitting,90° PTFE Fitting

    45° Swivel Fitting ,90° Swivel Fitting

    Application: Suitable for high-performance and daily-use vehicles, including racing applications, E85-compatible setups, and customized fuel systems.

    Material Quality: Premium-grade PTFE and CPE hoses with reinforced layers for maximum strength, high-temperature tolerance, and corrosion resistance.

    $70.99
    $70.99
  • [30-70PSI][20-75PSI&75-120PSI] fuel filter
    EVIL ENERGY EFI Fuel System Upgrade Kit – PTFE Fuel Line with AN Fittings, 20-130 Psi Adjustable Pressure Regulator High-Flow Filter for Fuel Injection E85 Compatible

    Tired of fuel system headaches? This complete EFI-ready fuel system kit solves all your performance fuel delivery challenges in one package:

    ✅ PTFE Lined Fuel Lines (20FT) - E85 & ethanol compatible, perfect for modern fuel injection systems and high-performance builds
    ✅ Precision Adjustable Fuel Pressure Regulator (20-130 PSI) - Optimized for EFI, turbocharged and supercharged applications
    ✅ High-Flow Inline Fuel Filter (10-100 micron) - Protects fuel injectors from contamination while maintaining maximum flow

    No more mixing and matching parts! Our kit includes 4AN, 6AN, 8AN and 10AN fittings for seamless integration with your EFI fuel system or carbureted upgrade.

    $183.83
    $183.83
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  • EVIL ENERGY 6/8/10AN PTFE Fuel Line Kit – 20FT Nylon Braided E85-Compatible High-Pressure Fuel Hose KitEVIL ENERGY 6/8/10AN PTFE Fuel Line Kit – 20FT Nylon Braided E85-Compatible High-Pressure Fuel Hose Kit
    EVIL ENERGY 6/8/10AN PTFE Fuel Line Kit – 20FT Nylon Braided E85-Compatible High-Pressure Fuel Hose Kit

    Upgrade your fuel system with a high-temperature, high-pressure PTFE fuel line designed for modern performance builds. EVIL ENERGY’s 6AN/8AN/10AN nylon-braided hose kit delivers leak-free operation, E85 compatibility, and superior durability for boosted, NA, and high-flow fuel setups. Built for racers, tuners, and enthusiasts who demand reliability under extreme heat and pressure.

    $89.99
    $89.99
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  • [Black][Black]
    EVIL ENERGY 6AN PTFE Fuel Line Kit 70inch Transmission Fluid Oil Cooler Hose Line kit for 4L60E 4L80E,AN6 Stainless Steel Braided PTFE Fuel Hose Kit for TH350 TH400 700R4 TR6060 4R70W Ford C5 5.8FT - Black
     ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Color Black/Silver Size 6AN Hose ID: 5/16 inch (0.31 inch) Hose OD: 0.45 inch Connector Specification 9/16 -18 UNF 3/8 inch -18 NPT 1/4 inch -18 NPT Length 5.8FT(70inch) Working temperature range  -76℉ to 500℉ (-60℃ to 260℃) Maximum working pressure...
    $58.99
    $58.99
    $110.00
    • Black
    • Silver
  • EVIL ENERGY 6AN PTFE Fuel Line Kit 52-inch Transmission Fluid Oil Cooler Hose Line kit for 4L60 4L60E 4L65E,AN6 Stainless Steel Braided PTFE Fuel Hose Kit for 4L80E TH350 TH400 700R4 Ford C4 C6 4.3FTEVIL ENERGY 6AN PTFE Fuel Line Kit 52" Transmission Fluid Oil Cooler Hose Line kit for 4L60 4L60E 4L65E,AN6 Stainless Steel Braided PTFE Fuel Hose Kit for 4L80E TH350 TH400 700R4 Ford C4 C6 4.3FT - EVILENERGY
    EVIL ENERGY 6AN PTFE Fuel Line Kit 52-inch Transmission Fluid Oil Cooler Hose Line kit for 4L60 4L60E 4L65E,AN6 Stainless Steel Braided PTFE Fuel Hose Kit for 4L80E TH350 TH400 700R4 Ford C4 C6 4.3FT - Silver
    ---!@!start!@!---Specifications---!@!end!@!--- Specification Details Package 2× 52" AN6 PTFE Hose + 2× 90° AN6 Female to AN6 Male Fitting + 4× AN6 to 1/4 NPT Adapter + 2× AN6 to 3/8 NPT Adapter Brand EVIL ENERGY Hose Size 6AN Hose Inner Diameter 5/16" (0.31") Hose...
    $52.99
    $52.99
    $110.00
    • Silver
  • EVIL ENERGY 10AN PTFE Fuel Line Kit, E85 Stainless Steel Braided PTFE Fuel Hose 30FT AN10 LS Swap EFI Fuel Line Fitting Kit - EVILENERGYEVIL ENERGY 10AN PTFE Fuel Line Kit, E85 Stainless Steel Braided PTFE Fuel Hose 30FT AN10 LS Swap EFI Fuel Line Fitting Kit - EVILENERGY
    EVIL ENERGY 10AN PTFE Fuel Line Kit, E85 Stainless Steel Braided PTFE Fuel Hose 30FT AN10 LS Swap EFI Fuel Line Fitting Kit
    ---!@!start!@!---Specifications---!@!end!@!--- Specification Details Brand EVIL ENERGY Size 6/8/10AN Length 30FT Kit Includes 30FT 6/8/10AN PTFE Fuel Line ×16/8/10AN Straight PTFE Fittings ×26/8/10AN 45° PTFE Fittings ×26/8/10AN 90° PTFE Fittings ×26/8/10AN 180° PTFE Fittings ×2Memory Stick Driver ×16/8/10AN Hose Separator Clamp ×4 Product Compare  ...
    $95.99
    $95.99
    $110.00
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  • EVILENERGY EVIL ENERGY 6AN PTFE Fuel Line Kit, E85 Compatible PTFE Fuel Hose Kit 20FT, AN6 Nylon Braided Line Hose with Adjustion WrenchEVILENERGY EVIL ENERGY 6AN PTFE Fuel Line Kit, E85 Compatible PTFE Fuel Hose Kit 20FT, AN6 Nylon Braided Line Hose with Adjustion Wrench
    EVIL ENERGY 6AN PTFE Fuel Line Kit, E85 Compatible PTFE Fuel Hose Kit 16/20FT, 6AN/8AN/10AN Nylon Braided Line Hose with Adjustion Wrench
    $90.99
    $90.99
    $98.99
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  • EVILENERGY EVIL ENERGY 6AN PTFE Transmission Line Kit 7FT for 4L60 700R4 TH350 TH400 | PTFE Inner Tube with 304 Stainless Steel Braid and Nylon Cover, 3Design for High Heat, Chemical Resistance & DurabilityEVILENERGY EVIL ENERGY 6AN PTFE Transmission Line Kit 7FT for 4L60 700R4 TH350 TH400 | PTFE Inner Tube with 304 Stainless Steel Braid and Nylon Cover, 3Design for High Heat, Chemical Resistance & Durability
    EVIL ENERGY 6AN PTFE Transmission Line Kit 7FT for 4L60 700R4 TH350 TH400 | PTFE Inner Tube with 304 Stainless Steel Braid and Nylon Cover, 3Design for High Heat, Chemical Resistance & Durability
    • Transmission Fitment: This transmission line is compatible with 4L60, 700R4, TH350, and TH400 transmissions, providing reliable fluid transfer between the transmission and cooler for efficient cooling performance. Please verify your transmission model before purchase
    • Hose Specifications: 6AN × 7FT, ID: 0.31" (8mm), OD: 0.45" (11.5mm), Max Working Pressure: 1500 PSI, Burst Pressure: 4500 PSI, Temperature Range: -76°F to 446°F, Minimum Bend Radius: 3.5" (88.9mm).
    • 3-Layer Construction: Built with a PTFE inner tube, 304 stainless steel braid, and braided nylon outer cover, this transmission cooler line provides excellent chemical resistance, heat resistance, flexibility, and durability for demanding applications
    • High Pressure Rating: The 6AN transmission line is rated for 1500 PSI working pressure, and 4500 PSI burst pressure, with reliable performance from -76°F to 446°F for high-performance transmission cooling systems
    • Wide Fluid Compatibility: This transmission line supports transmission fluid, engine oil, E85, racing fuel, diesel, and hydraulic steering fluids for versatile fluid transfer applications
    • Complete Kit Included: The transmission line kit includes a 7FT hose, swivel hose ends, and adapter fittings for convenient installation. Precision-machined components ensure secure connections and reliable performance
    $38.99
    $38.99
    $38.99
  • EVILENERGY EVIL ENERGY AN10 PTFE Transmission Line for GM Duramax 01-05 6.6L LB7 / LLY | PTFE Inner Tube with 304 Stainless Steel Braid and Nylon Cover, Design for Extreme Heat, Chemical Resistance & DurabilityEVILENERGY EVIL ENERGY AN10 PTFE Transmission Line for GM Duramax 01-05 6.6L LB7 / LLY | PTFE Inner Tube with 304 Stainless Steel Braid and Nylon Cover, Design for Extreme Heat, Chemical Resistance & Durability
    EVIL ENERGY AN10 PTFE Transmission Line for GM Duramax 01-05 6.6L LB7 / LLY | PTFE Inner Tube with 304 Stainless Steel Braid and Nylon Cover, Design for Extreme Heat, Chemical Resistance & Durability
    • Transmission Fitment: This transmission line is compatible with 2001-2005 GM Duramax 6.6L LB7/LLY transmissions, providing reliable fluid transfer between the transmission and cooler for efficient cooling performance. Please verify your transmission model before purchase
    • Hose Specifications: 10AN, ID: 0.52" (13.3mm), OD: 0.69" (17.5mm), Max Working Pressure: 1250 PSI, Burst Pressure: 3750 PSI, Temperature Range: -76°F to 446°F, Minimum Bend Radius: 4.5" (114.3mm).
    • 3-Layer Construction: Built with a PTFE inner tube, 304 stainless steel braid, and braided nylon outer cover, this transmission cooler line delivers excellent chemical resistance, heat resistance, flexibility, and long-lasting durability
    • High Pressure Rating: The AN10 transmission line is rated for 1250 PSI working pressure and 3750 PSI burst pressure, with reliable performance from -76°F to 446°F for demanding transmission cooling applications
    • Wide Fluid Compatibility: This transmission line supports transmission fluid, engine oil, E85, racing fuel, diesel, and hydraulic steering fluids for versatile fluid transfer applications
    • Complete Kit Included: The transmission line kit includes hose, swivel hose ends, and adapter fittings for a secure cooling system connection. Precision-machined components ensure reliable installation and performance
    $75.99
    $75.99
    $75.99

FAQs about PTFE Fuel Line Kits

What is a PTFE Fuel Line Kit?

A PTFE Fuel Line Kit is a high-performance fuel delivery solution made from polytetrafluoroethylene material, ensuring durability and resistance to heat and corrosion.

EVIL ENERGY PTFE fuel hose kits provide superior longevity, compatibility with various fuels, and are trusted by automotive enthusiasts for high-performance fuel systems.

The 6AN PTFE fuel line kit is ideal for smaller fuel systems, while the 8AN kit is better suited for high-flow applications in larger vehicles.

Yes, EVIL ENERGY PTFE fuel hose kits are compatible with gasoline, ethanol, diesel, and other high-performance fuels.

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